Análisis de los efectos de incluir agregados de concreto reciclado en bases asfálticas de pavimentos flexibles para una malla vial teórica de tráfico bajo, modelados en un Sistema de Gestión de Pavimentos

Construction is one of the industries that generates the largest amount of polluting waste in the world, since its development requires the extraction of a large number of natural materials. In order to minimize these effects, it is necessary to use this waste as input for the construction of buildings or roads. In accordance with the above mentioned, this article analyzes the effects of including Recycled Concrete Aggregates (RCA) in the coarse fraction at different substitution percentages (0%, 10%, 20% and 30%), for asphalt base layers in flexible pavements for low traffic, through modeling in a Pavement Management System (PMS). The main conclusion is that the costs per m3 of asphalt mixtures have a minimal reduction (0.2%) for the use of 30% RCA; for the remaining scenarios, these costs increase. Regarding flexible pavement structures, economic benefits are evident over a period of 20 years, with the scenario with 10% replacement of RCA being the one with the greatest cost reduction if compared to higher replacements (30%).